1165201822320 has 80 divisors (see below), whose sum is σ = 3620029984800. Its totient is φ = 310040543232.

The previous prime is 1165201822247. The next prime is 1165201822417. The reversal of 1165201822320 is 232281025611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5202145 + ... + 5421504.

It is an arithmetic number, because the mean of its divisors is an integer number (45250374810).

Almost surely, 2^{1165201822320} is an apocalyptic number.

1165201822320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165201822320 is an abundant number, since it is smaller than the sum of its proper divisors (2454828162480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165201822320 is a wasteful number, since it uses less digits than its factorization.

1165201822320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624122 (or 10624116 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 1165201822320 its reverse (232281025611), we get a palindrome (1397482847931).

The spelling of 1165201822320 in words is "one trillion, one hundred sixty-five billion, two hundred one million, eight hundred twenty-two thousand, three hundred twenty".